there is a river through our city.I think at least two bridges什么(need或are needed)over it

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thereisariverthroughourcity.Ithinkatleasttwobridges什么(need或areneeded)overitthereisariverthroughourci

there is a river through our city.I think at least two bridges什么(need或are needed)over it
there is a river through our city.I think at least two bridges什么(need或are needed)over it

there is a river through our city.I think at least two bridges什么(need或are needed)over it
are needed
桥是“被”需要

need。这个地方是附语谓语动词。桥是被需要的,need,被动式是原形。“在我们的城市中间横跨着一条河流,我想至少需要两座桥”。